Daily Report for 26th February 2022

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -0.4 °C (-3.6) 07:05 4.7 °C (+1.8) 8.7 °C (+5.5), 2017 -2.8 °C (-6.0), 2018
Maximum Temperature 10.8 °C (+1.7) 12:18 10.7 °C (+2.5) 18.1 °C (+9.0), 2019 0.8 °C (-8.3), 2018
Mean Temperature 5.6 °C (-0.9) 7.9 °C (+2.1) 10.4 °C, 2017 -0.8 °C, 2018
Minimum Humidity 48% 16:46 67% 89%, 2013 43%, 2019
Maximum Humidity 95% 08:03 90% 98%, 2010 79%, 2016
Mean Humidity 75% 80% 95%, 2013 66%, 2016
Minimum Pressure 1027 hPa 23:42 1010 hPa 1035 hPa, 2021 979 hPa, 2010
Maximum Pressure 1033 hPa 00:46 1021 hPa 1041 hPa, 2021 999 hPa, 2010
Mean Pressure 1031 hPa 1016 hPa 1038 hPa, 2021 989 hPa, 2010
Mean Wind Speed 4.1 mph (-1.0) 8.3 mph (+3.2) 9.6 mph, 2010 1.3 mph, 2021
Maximum Wind Speed 15.3 mph 11:10 19.8 mph 23.0 mph, 2010 8.3 mph, 2019
Maximum Gust 26.2 mph 11:07 32.3 mph 34.7 mph, 2010 12.1 mph, 2012
Mean Wind Direction S
Rainfall 0.0 mm 49.8 mm (119%) 5.7 mm, 2015
Maximum Hourly Rain n/a 2.5, 2017
Maximum 10-min Rain n/a 0.8, 2015
Maximum Rain Rate n/a 10, 2017
Minimum Dew Point -1.7 °C 07:05 1.7 °C 5.4 °C, 2017 -7.5 °C, 2018
Maximum Dew Point 5.2 °C 09:52 7.4 °C 10.5 °C, 2015 -3.5 °C, 2018
Mean Dew Point 1.2 °C 4.6 °C 7.1 °C, 2017 -5.4 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -0.4 °C 07:09 5.4 °C 9.6 °C, 2015 -1.8 °C, 2018
Day Maximum (09-21) 10.8 °C 12:18 10.5 °C 18.1 °C, 2019 0.8 °C, 2018
Max 10m Temp Rise 1.2 °C 08:06 0.4 °C 1.2 °C, 2022 0.1 °C, 2013
Max 1hr Temp Rise 5.3 °C 08:50 1.6 °C 5.3 °C, 2022 0.3 °C, 2013
Max 1hr Hum Rise 14% 18:13 8% 21%, 2018 3%, 2013
Max 10m Temp Fall 0.4 °C 12:28 0.6 °C 1.5 °C, 2015 0.1 °C, 2013
Max 1hr Temp Fall 1.0 °C 18:45 1.6 °C 3.1 °C, 2015 0.3 °C, 2013
Max 1hr Hum Fall 12% 09:10 9% 19%, 2015 2%, 2013
Max 10m Wind Speed 12.1 mph 11:12 15.1 mph 16.0 mph, 2017 5.9 mph, 2012
Minimum Feels-like -2.0 °C 05:54 0.2 °C 5.7 °C, 2017 -9.4 °C, 2018
Maximum Feels-like 10.8 °C 12:18 10.6 °C 18.1 °C, 2019 -2.0 °C, 2018
Mean Feels-like 4.4 °C 5.7 °C 10.0 °C, 2017 -6.2 °C, 2018
Air-frost Hrs 2 hrs 0.1 hrs 17 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 11.2 °C (+5.3) 6.0 °C (+0.7) 16.2 °C (+10.3), 2019 2.1 °C (-3.8), 2013
Humidity Range 47% 23% 48%, 2010 9%, 2013
Pressure Range 6 hPa 12 hPa 20 hPa, 2010 3 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9 [94%]71 hrs (98%) [31%] 9.6 [100%], 2019 0 [0%], 2013
Wet Hours 057 hrs (118%) [9.1%] 6, 2011 , 2009
Cloud Cover unknown
Events Air Frost
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 6.0 °C
Notes
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs are initially pulled from the official weather station at Heathrow, and later adjusted by hand to reflect local conditions based on webcam observations. Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually. Cloud cover and Events are manually reported, often with multi-week delays.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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